Results 11 to 20 of about 75,244 (265)

STUDY OF ALUMINUM TUBE COLD NOSING PROCESS INTO CONICAL AND HEMI-SPHERICAL DIES WITH DIFFERENT COEFFICIENTS OF FRICTION [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2020
Theoretical analysis and finite element method were used to simulate the cold nosing process of commercial purity Aluminum tubes into conical and hemispherical dies.
A. Badran   +3 more
doaj   +1 more source

Investigation of the Geometry of Metal Tube Walls after Necking in Uniaxial Tension

open access: yesMetals, 2017
: In order to characterize the deformation and true stress–strain relation of metal tubes, the geometry of tube walls after necking in uniaxial tension need to be determined. The paper investigated the necking process of metal tube.
Chong Li   +3 more
doaj   +1 more source

A STUDY ON MICRO BUBBLES AERATION METHOD ON WATER TURBIDITY AT AQUACULTURE EARTHEN PONDS UNDER DIFFERENT OPERATIONAL PARAMETERS [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2022
The experiment was established at an earthen aquaculture private farm in Kafrelshikh Government, Egypt. During 2021. To study the effect of operational variables at tube diffusion aeration system on turbidity values corresponding to Secchi disk clarity ...
Tarek FOUDA   +2 more
doaj  

Experimental Study on Self-Compacting Concrete-Filled Thin-Walled Steel Tube Columns

open access: yesBuildings, 2022
Concrete-filled steel tubes present excellent structural and constructional performances because they ideally combine the advantage of concrete and steel tube. Thus, they are widely used in civil infrastructures.
Yunyang Wang   +3 more
doaj   +1 more source

USING RUBBER TUBES TO GENERATE MICRO BUBBLES FOR AERATION SYSTEM IN SEMI-INTENSIVE FISH FARMING [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2022
The expansion of aquaculture ponds necessitates the development of aeration and the addition of oxygen. Rubber tubes are a new way of aerating by generating micro bubbles on the water surface.
Tarek FOUDA   +3 more
doaj  

Experimental and Finite Element Analysis on Rounded Corners Square Shape Tube Hydroforming Process [PDF]

open access: yesEngineering and Technology Journal, 2014
Tube hydroforming is a forming process where an inner pressure combined with axial feeding deforms the tube to the shape of a die cavity, i.e. the process state where the hardening of the material is unable to resist the increase in inner pressure and ...
Hani Aziz Ameen, Nahedh Mahmood Ali
doaj   +1 more source

Internal Flow-Turning – extended manufacturing possibilities in tailored tube production

open access: yesMATEC Web of Conferences, 2018
The motivation behind the development of a new approach to the manufacture of tailored tubes is the need for greater flexibility in the wall thickness variation of semi-finished parts compared with present manufacturing processes.
Wiens Eugen, Homberg Werner
doaj   +1 more source

Estimation method of pipe wall thinning tendency at T tube in actual plant

open access: yesNihon Kikai Gakkai ronbunshu, 2023
Flow-Accelerated Corrosion (FAC) is a pipe wall thinning phenomenon to be monitored and managed in the power plants with high priority. Its management has been conducted with conservative evaluation of thinning rate and residual lifetime of piping based ...
Shun WATANABE   +2 more
doaj   +1 more source

Orthogonal Analysis of Axial Bearing Capacity of Short Columns Reinforced by Circular Steel Tube and Ultra High Performance Concrete with Coarse Aggregate

open access: yesRenmin Zhujiang, 2021
This paper analyzes the influence of outer diameter of steel tube, wall thickness of steel tube, steel strength and concrete strength on the axial bearing capacity of short columns reinforced by circular steel tube and ultra high performance concrete ...
TANG Jiajun, WANG Tan, LI Jiuyang
doaj  

Study on the Micro Removal Process of Inner Surface of Cobalt Chromium Alloy Cardiovascular Stent Tubes

open access: yesMicromachines, 2022
Due to the special manufacturing process of cobalt–chromium alloy cardiovascular stent tubes, there are serious surface defects in their inner walls, which affects the therapeutic effect after implantation.
Zhuang Song   +10 more
doaj   +1 more source

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